Bought this universal muffler after much research. Had a magnaflow recommended shop in seattle install it for about $80. The sound is deep and muffled and tolerable at all operating speeds and certainly not overbearingly loud. There is a certain resonance at certain RPM's, but this should be expected. At cruise speeds it's barely noticeable. My car already has good sound insulation properties and I would recommend this universal muffler if you're only interested in replacing your stock muffler. It also weighs considerably less than the stock muffler and you're getting less exhaust restriction.